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NCLEX-RN · Question #295

An expected response to sodium polystyrene sulfonate (Kayexalate) is:

The correct answer is C. Decrease in serum potassium. (A) Sodium polystyrene sulfonate administration will not increase serum magnesium. Hypermagnesemia is virtually unknown except for clients in renal failure. (B) Sodium polystyrene sulfonate administration is not known to increase serum bicarbonate. (C) Decrease in serum…

Physiological Integrity: Pharmacological and Parenteral Therapies

Question

An expected response to sodium polystyrene sulfonate (Kayexalate) is:

Options

  • AIncrease in serum magnesium
  • BIncrease in serum HCO3
  • CDecrease in serum potassium
  • DDecrease in serum calcium

How the community answered

(23 responses)
  • B
    4% (1)
  • C
    91% (21)
  • D
    4% (1)

Explanation

(A) Sodium polystyrene sulfonate administration will not increase serum magnesium. Hypermagnesemia is virtually unknown except for clients in renal failure. (B) Sodium polystyrene sulfonate administration is not known to increase serum bicarbonate. (C) Decrease in serum potassium, the expected response of sodium polystyrene sulfonate, is secondary to the binding of this drug and potassium in the colon, and potassium is removed through the feces. (D) Serum calcium may actually increase with sodium polystyrene sulfonate administration, especially if calcium chloride is administered concurrently with this drug.

Topics

#Kayexalate#hyperkalemia#potassium exchange resin#electrolyte management

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